420699 has 16 divisors (see below), whose sum is σ = 607392. Its totient is φ = 258048.

The previous prime is 420691. The next prime is 420731. The reversal of 420699 is 996024.

It is not a de Polignac number, because 420699 - 2³ = 420691 is a prime.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 420699.

It is not an unprimeable number, because it can be changed into a prime (420691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3667 + ... + 3779.

It is an arithmetic number, because the mean of its divisors is an integer number (37962).

2⁴²⁰⁶⁹⁹ is an apocalyptic number.

420699 is a deficient number, since it is larger than the sum of its proper divisors (186693).

420699 is a wasteful number, since it uses less digits than its factorization.

420699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 420699 is about 648.6131358522. The cubic root of 420699 is about 74.9302462568.

The spelling of 420699 in words is "four hundred twenty thousand, six hundred ninety-nine".